sweet-js/sweet-core

Health v2 · maintenance only

Flags: archived

Adoption not part of the score

4559 stars · 210 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Sweet.js is a JavaScript macro system that brings hygienic macros (like those in Scheme and Rust) to JavaScript, letting developers define new syntax and extend the language. It ships as a compiler library and CLI (`sjs`) that transforms sweetened code into plain JavaScript.

Use cases

• define custom syntax for javascript
• create hygienic macros in js
• build a custom dsl on top of javascript
• extend javascript language syntax
• compile sweet.js macros to javascript

When to choose

• you want to add new syntax or language features to JavaScript
• you're building a DSL that compiles to JavaScript
• you're experimenting with language design and macro systems

When to avoid

• you need a production-stable tool with a frozen API
• you need an actively maintained project (last release was 2017)
• you just need standard JavaScript tooling without syntax extension

Facets

library · maturity experimental

compiler parser programming-language developer-tools programming-languages compilers developer-tools web-development cli cross-platform macros hygienic-macros javascript syntax-extension transpiler nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="sweet-js/sweet-core")